Chinese Optics Letters, 2019, 17 (6): 061702, Published Online: Jun. 12, 2019
Tunable protein microlens array Download: 850次
Abstract
Based on natural protein materials, a series of lenses with different heights and focal lengths were assembled on glass substrates by femtosecond laser non-contact, masking, and cold processing. This lens array itself possesses unique and characteristic optical performance in three-dimensional parallel imaging and bending imaging. What is more profound is that by using equilibrium swelling of protein-hydrogel, once the lens array was placed in a liquid environment, with the change of ion concentration (e.g., pH), the refractive index and curvature of the protein-hydrogel would change, which leads to the flex of the focal plane of the lens, finally realizing the dynamical tunability of a protein microlens. These smart stress devices may have great potential in optical biosensing and microfluidic chip integration fields.
Zhishan Hou, Jiaji Cao, Aiwu Li, Han Yang. Tunable protein microlens array[J]. Chinese Optics Letters, 2019, 17(6): 061702.